Abstract
An integrated procedure was developed to extract and purify total flavonoids from Toona sinensis leaves for the first time, in which pressurized liquid extraction was performed in tandem with HPD100 macroporous resin column. Consequently, the total flavonoids can be extracted using 10% EtOH, and the recovery and purity of total flavonoids was 71.05% and 66.60%. Moreover, products of high quality were obtained in an environmentally friendly process with lower consumption of time and solvent. The results demonstrated that the integrated extraction-adsorption procedure was an efficient process for the preparation of total bioactive flavonoids from Toona sinensis leaves.
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